From 6bef1434c3158a056f9b2dabf4803f9ef1055563 Mon Sep 17 00:00:00 2001
From: yongari <yongari@FreeBSD.org>
Date: Mon, 8 Oct 2012 07:13:45 +0000
Subject: [PATCH] Limit applying TX data corruption and FIFO workaround to
 BCM5719 A0. It's believed BCM5720 does not have the issue.

---
 sys/dev/bge/if_bge.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sys/dev/bge/if_bge.c b/sys/dev/bge/if_bge.c
index 95a54d5561bf..d35438f5c3c1 100644
--- a/sys/dev/bge/if_bge.c
+++ b/sys/dev/bge/if_bge.c
@@ -2121,8 +2121,8 @@ bge_blockinit(struct bge_softc *sc)
 		 * Adjust tx margin to prevent TX data corruption and
 		 * fix internal FIFO overflow.
 		 */
-		if (sc->bge_asicrev == BGE_ASICREV_BCM5719 ||
-		    sc->bge_asicrev == BGE_ASICREV_BCM5720) {
+		if (sc->bge_asicrev == BGE_ASICREV_BCM5719 &&
+		    sc->bge_chipid == BGE_CHIPID_BCM5719_A0) {
 			dmactl &= ~(BGE_RDMA_RSRVCTRL_FIFO_LWM_MASK |
 			    BGE_RDMA_RSRVCTRL_FIFO_HWM_MASK |
 			    BGE_RDMA_RSRVCTRL_TXMRGN_MASK);